Tiago

iTrader: (27)

My spark dwell tables are still stock, at least I think they are....

I had some problems with fuel and maybe spark on the dyno today, and I remember Harlan speaking about having the dwell time set to 7 or something... now I can't find the thread.

at 13V its in the 3.7 range but I have a volt blaster, and it takes it close to 18V so there the table reads in the 2.8 range in the power RPM's.

Any advice on how much I could put in???

Phil99vette

iTrader: (11)

On the higher RPMs, I heard the key is to set the dwell time to 6ms which may be the max from a couple things I have read.

Tiago

iTrader: (27)

what are you considering higher RPM's?

NA$TY-TA

iTrader: (21)

4-4500 to start. What are u at now??

Tiago

iTrader: (27)

4000 rpms up to 7200, 12 V to 18V

4.30091 4.30091 4.19453 4.19453 4.19453 4.19453 4.19453 4.19453 4.19453
3.90577 3.84498 3.75380 3.69301 3.69301 3.69301 3.69301 3.69301 3.69301
3.49544 3.40426 3.29787 3.20669 3.20669 3.20669 3.20669 3.20669 3.20669
3.25228 3.20669 3.10030 2.99392 2.99392 2.99392 2.99392 2.99392 2.99392
2.99392 2.99392 2.90274 2.79635 2.79635 2.79635 2.79635 2.79635 2.79635
2.99392 2.99392 2.90274 2.79635 2.79635 2.79635 2.79635 2.79635 2.79635
2.99392 2.99392 2.90274 2.79635 2.79635 2.79635 2.79635 2.79635 2.79635

lol

qqwqeqwrqwqtq

Ramp it up to 7ms by peak torque and up.

Tiago

iTrader: (27)

thanks Jim.

What side effects will/can I see if it is TOO much?

Zombie

iTrader: (2)

no spark due to a fried ignightor in the coil pack.

y2khawk

iTrader: (5)

actually no.

the coils are smart enough to either limit the current if you over dwell them, or they simply drop early. Depends on which kind you have.

current limit isn't too bad, but dropping early is the one to watch. Those will randomly advance the spark when that happens.

unless you're running 16V, 5ms to 6ms is a safe range. 16V and you may have to watch it, as they will over current sooner with greater available potential.

Zombie

iTrader: (2)

So the coil packs have limiting built in? I've never heard of anyone talk about that before. Do you know which ones limit vs drop? I'd be curious to know what kind I have.

MIGHTYMOUSE

iTrader: (59)

this thread made me check mine and they go up to 5.99 at the moment.

kp

iTrader: (34)

Thats default on a BS3, I have tried it up to 7 and it will start misfiring there at 15.5v so I leave it at the 5.99 at higher rpm. I just have the stock 98 coils, maybe the truck ones can go higher..

Tiago

iTrader: (27)

I have a volt blaster and it pushes the electrical system to 18V at WOT

so stay at 6ms?

thanks

kp

iTrader: (34)

A BS3 and the stock PCM may be different on how it handles the dwell, I wouldnt turn it up until you are sure you are having spark issues. Better a little spark blowout than some erratic timing.

I only get 15.5v with the voltblaster WOT, 18 is a lot..